WayForward packs a lot into such a tiny, unappreciated gem. A great throwback to Metroid (which itself was inspired by Scott/Cameron's Alien films, so the circle is now complete) with excellent sprite art, tight controls and satisfying if occasionally uninspired and cheap game design.

A good buy if you're collecting NDS hidden gems and need something fun and well made.

I miss games like this since the snes days. Aliens Infestation is a Metroidvania type game and believe it or not it's a pretty tense game.

Things I liked:Once your character dies, he's gone! You keep adding new squad mates to your team, so make sure you find more characters to play with in case you die.Limited resources (health, ammo, grenades, etc)Sound effects from the movies!Slow paced tension building approach to horrorWeapon upgradesDropping flares (like Ripley does in Aliens) for when you may have to backtrack to an area.Pulse radar! :D (makes game creepy)

Things I didn't like:Fighting humans while behind cover can be a bit tedious.

Another great game by WayForward, makers of Contra 4 and that Batman wii game that was strangely pretty fun. It's Metroid with xenomorphs. Fairly scary and tense even with the 16-bit look. For the price, I recommend everyone buy this game. It's one of the only games I've purchases and not regretted on DS for the last 2 years!